Experian-T-Mobile US hack: 'We trusted them, now that trust is broken'Who guards the cyber-guards?

Analysis The IT security breach that spilt the personal details of an estimated 15 million T-Mobile US phone contract applicants has thrown a new spotlight on the risks of breaches at third-party companies.

T-Mobile's own systems weren't compromised. Rather, the source of the leak was Experian, the company that processed the carrier's credit applications.